package com.demo.ruiji.config;

import com.demo.ruiji.common.JacksonObjectMapper;
import com.github.xiaoymin.knife4j.spring.annotations.EnableKnife4j;
import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;
import springfox.documentation.swagger2.annotations.EnableSwagger2;

import java.util.List;


/**
 * 前端资源放行配置类
 * */
@Configuration
@Slf4j
@EnableSwagger2
@EnableKnife4j
public class WebMvcConfig extends WebMvcConfigurationSupport {
    /**
    * 设置静态资源映射
    * */
    @Override
    protected void addResourceHandlers(ResourceHandlerRegistry registry) {
        //添加映射
        log.info("映射资源开始");
        registry.addResourceHandler("/backend/**").addResourceLocations("classpath:/backend/");
        registry.addResourceHandler("/front/**").addResourceLocations("classpath:/front/");
    }

    /**
     * 拓展vue的消息转换器
     * @param converters
     */
    @Override
    protected void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
        log.info("拓展消息转换器");

        //创建消息转换器
        MappingJackson2HttpMessageConverter messageConverter = new MappingJackson2HttpMessageConverter();
        //设置对象转换器，地城使用Jackson将java对象转换为json
        messageConverter.setObjectMapper(new JacksonObjectMapper());
        //将上面的消息转换器追加到MVC框架转换器集合中
        converters.add(0,messageConverter);
    }

}
